Evaporative humidifier



FIG. 1 is a front, right side and top perspective view of an evaporative humidifier;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a left side elevational view.

The right side elevation is a mirror image of the left side elevation. 

The ornamental design for an evaporative humidifier, as shown and described. 